2012 vs 2013 Stumpjumper FSR Expert

Anyone out there with experience riding both a 2012 SJ FSR Expert 29er (carbon) and a 2013 of the same model? I've heard the brain was kinda squishy on the 2012 and older, but that they really dialed it in on 2013 and it works a little more like the epic (very little-to-no bob while climbing until you need it).

"There are two kinds of mountain bikers in the world: those who are faster than me, and me."

Bumping my own thread- there have to be some folks out there with experience/ knowledge between these two. I'm potentially looking at picking up a 2012 Expert frame, but not if the Brain isn't any good compared to the 2013.

"There are two kinds of mountain bikers in the world: those who are faster than me, and me."